CN210196027U

CN210196027U - Exhaust structure of compressor and compressor

Info

Publication number: CN210196027U
Application number: CN201921018414.1U
Authority: CN
Inventors: Chen Wang; 王晨; Ke Chen; 陈可; Fengli Yu; 余风利
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-03-27
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses an exhaust structure and compressor of compressor, the compressor includes casing and stator core, be equipped with on the inner wall of casing and be used for carminative recess, the recess is located stator core's periphery, the recess is rectangular form, the recess sets up along the axial direction of pivot, and the center of recess sets up at same height with stator core's center, the length of recess is greater than stator core's height, shells inner wall's circumference evenly is provided with a plurality of recesses, the both ends of recess are equipped with the changeover portion that is used for reducing gas energy loss when exhausting. Compared with the prior art, the utility model provides a setting up of recess in the exhaust structure of compressor has increased the exhaust area of gas outgoing compressor when stator core for the exhaust resistance reduces greatly, reduces the pressure pulsation in exhaust chamber, thereby reaches the effect of stabilizing the exhaust pressure, reducing energy loss, finally reaches and reduces the compressor consumption, promotes the performance of compressor.

Description

Exhaust structure of compressor and compressor

Technical Field

The utility model relates to a compressor manufacturing field, in particular to exhaust structure and compressor of compressor.

Background

With the continuous progress of scientific technology and the increasing production and living standard. Air conditioners have become one of the most important household appliances in daily life, and compressors have been widely used as important refrigeration devices in air conditioning systems. The design of the motor exhaust passage of the compressor is mainly realized by designing a through-flow hole on a stator and a rotor at present, the performance of the motor is influenced by too large exhaust area of the through-flow hole, and the exhaust resistance of the compressor is increased by too small exhaust area, so that the exhaust resistance of the compressor cannot be effectively reduced when the through-flow hole is designed, and the power consumption of the compressor is larger and the performance of the compressor is general; meanwhile, the existing compressor is still seriously troubled by the noise problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides an exhaust structure and compressor of compressor has solved the too big problem of resistance when the compressor among the prior art exhausts.

The technical scheme of the utility model is that: the compressor comprises a shell and a stator core, wherein a groove for exhausting is formed in the part, right opposite to the stator core, of the inner wall of the shell.

The groove is long.

The groove extends in an axial direction of the stator core.

The axial center of the groove and the axial center of the stator core are arranged at the same height.

The length of the groove is larger than the axial length of the stator core.

The groove has a plurality of, a plurality of grooves evenly set up in the circumference.

The both ends of recess are equipped with the changeover portion that is used for reducing gas energy loss when exhausting.

The transition section comprises a transition surface, and the transition surface is arranged between the groove bottom surface of the groove and the inner wall of the shell.

The transition surface is a plane, the transition surface is arranged from the groove bottom surface of the groove to the surface of the inner wall in an inclined mode, and an included angle between the transition surface and the groove bottom surface of the groove is an obtuse angle.

A compressor comprises the exhaust structure.

Compared with the prior art, the utility model has the advantages of: the utility model provides an exhaust structure and compressor of compressor, the compressor includes casing and stator core, is equipped with the recess that is used for exhausting on the inner wall of casing, and the recess is located stator core's periphery, and the setting of recess has increased the exhaust area of gas outgoing compressor when passing through stator core, owing to increased exhaust area, makes the exhaust resistance reduce greatly, reduces the pressure pulsation in exhaust chamber to reach stable exhaust pressure, reduce energy loss's effect, finally reach and reduce the compressor consumption, promote the performance of compressor; meanwhile, when refrigerant gas passes through the groove, eddy current can be generated, and the frequency of the eddy current interferes with the frequency of noise, so that the purpose of certain interference noise reduction is achieved.

Drawings

Fig. 1 is a schematic sectional view of a compressor according to the present invention;

fig. 2 is a schematic sectional view of a discharge structure of a compressor according to the present invention;

fig. 3 is an enlarged schematic view of a in the present invention.

Detailed Description

The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.

The utility model provides an exhaust structure of compressor, as shown in fig. 1 to 2, in the section structure schematic diagram of compressor, this compressor includes the casing 1 of tube-shape, and the inside of casing 1 is equipped with stator 2, rotor 3 and pivot 4, and 3 covers of rotor are established in pivot 4, and stator 2 is located the outside of rotor 3, and stator 2 includes stator core 21 and the stator winding 22 of coiling on stator core 21.

As shown in fig. 2, a sectional view of the discharge structure of the compressor is schematically shown, and a groove 11 for discharging gas is provided at a portion of the inner wall of the casing 1 facing the stator core 21.

Specifically, the shape of the groove 11 is long, the long groove 11 is disposed on the inner wall of the housing 1 along the axial direction of the stator core 21, that is, the groove 11 is vertically disposed on the inner wall of the housing 1, the groove 11 in this embodiment is long, the groove 11 and the stator core 21 are disposed in parallel, the center of the groove 11 and the axial center of the stator core 21 are located on the same horizontal position, that is, the center of the groove 11 and the center of the stator core 21 are located at the same height, and the length of the groove 11 is slightly greater than the axial length of the stator core 21; the inner wall of casing 1 is the periphery, and recess 11 is a plurality ofly provided with in the even circumferential direction of the inner wall of casing 1, at the in-process of design and processing, according to the inside pressure distribution of compressor, the interior gaseous flow direction of exhaust passage and the actual thickness of casing in order to confirm shape, figure and the size of recess 11 to guarantee the homogeneity of compressor circumference atress, avoid the aggravation of vibration and noise problem.

In this embodiment, the upper and lower both ends of recess 11 still are equipped with the changeover portion, and in the practical application of compressor, the compressor upwards exhausts, and the lower extreme of recess 11 is the inlet end, and the upper end of recess 11 is the end of giving vent to anger, and the changeover portion that sets up at the upper and lower both ends of recess 11 can reduce the loss of compressor when the air current of exhaust passes through recess 11 when energy, and the circulation direction of air current is as shown by the arrow in fig. 2.

Specifically, as shown in fig. 3, the transition section includes a transition surface 111, the transition surface 111 is a plane, the transition surface 111 is obliquely disposed on the groove bottom 12 of the groove 11, the transition surface 111 is simultaneously connected between the inner wall of the casing 1 and the groove bottom 12 of the groove 11, an included angle between the transition surface 111 and the groove bottom 12 of the groove 11 is an obtuse angle, the transition surface 111 can well guide the gas into the groove 11, and simultaneously, the resistance of the gas when the gas is discharged from the groove 11 is reduced, so that the energy lost when the gas flows through the groove 11 is reduced; and when the included angle between the groove bottom surfaces 12 of the grooves 11 is a right angle or an acute angle, a vortex can be generated when the air flow flows out, and the energy loss when the air flow flows out can be increased due to the generation of the vortex, so that the included angle between the transition surface 111 and the groove bottom surfaces 12 of the grooves 11 is an obtuse angle, the vortex can be prevented from being generated by the air flow, and the energy loss when the air flow passes through the grooves 11 when the compressor exhausts air can be reduced.

Since the conventional compressor has a small area of the discharge passage during operation, the resistance during discharge is large, which results in a pulsation increase in the compressor, and the pulsation increase may cause many adverse effects on the compressor, such as: the energy loss is high, the power consumption of the compressor is increased, the performance of the compressor is reduced and the like; however, the compressor of the utility model adds a plurality of evenly distributed grooves for exhausting on the inner wall of the compressor shell, the length of the groove is slightly greater than the height of the stator core, and the center of the groove and the center of the stator core are positioned at the same height, because the distance between the stator core and the inner wall of the shell is smaller, the flow area is small and the resistance is large when the gas is exhausted, the arrangement of the groove 11 increases the exhaust area when the gas-exhausted compressor passes through the stator core, and the arrangement method is directly arranged on the inner wall of the shell, the structure of the motor is not changed, so that the performance of the motor is hardly influenced; because the exhaust area is increased, the exhaust resistance is greatly reduced, and the pressure pulsation of the exhaust cavity is reduced, so that the effects of stabilizing the exhaust pressure and reducing the energy loss are achieved, the power consumption of the compressor is finally reduced, and the performance of the compressor is improved.

Meanwhile, when the refrigerant gas passes through the groove 11, a vortex is generated, and the frequency of the vortex interferes with the frequency of noise, so that the purpose of certain interference noise reduction is achieved.

The above embodiments are only for illustrating the concept of the present invention, and those skilled in the art can make various modifications and changes under the concept of the present invention, and these modifications and changes are included in the protection scope of the present invention.

Claims

1. The compressor comprises a shell and a stator core and is characterized in that a groove used for exhausting is formed in the portion, right opposite to the stator core, of the inner wall of the shell.

2. The exhaust structure according to claim 1, wherein the grooves are elongated.

3. The exhaust structure according to claim 2, wherein the groove extends in an axial direction of the stator core.

4. The exhaust structure according to claim 2 or 3, wherein a center of the groove in an axial direction is disposed at the same height as an axial center of the stator core.

5. The exhaust structure according to claim 4, wherein a length of the groove is greater than an axial length of the stator core.

6. The exhaust structure according to claim 3, wherein the groove has a plurality, and the plurality of grooves are uniformly arranged in a circumferential direction.

7. The exhaust structure according to claim 1, wherein both ends of the groove are provided with transition sections for reducing energy loss of gas upon exhaust.

8. The exhaust structure according to claim 7, wherein the transition section includes a transition surface disposed between a groove bottom surface of the groove and an inner wall of the housing.

9. The exhaust structure according to claim 8, wherein the transition surface is a flat surface, the transition surface is disposed obliquely from the groove bottom surface of the groove to the surface of the inner wall, and an included angle between the transition surface and the groove bottom surface of the groove is an obtuse angle.

10. A compressor characterized by comprising the discharge structure according to any one of claims 1 to 9.